Surgical retractor
AssigneeNuVasive, Inc.
InventorsCasey O'Connell, Joel Kohn, James Coleman Lee, David Banks
Life of this patent
Estimating the term…
Abstract
A surgical retractor assembly is provided having a frame that releasably couples two retractor blades. The retractor blades are coupled to the frame via a pair of mobile carriages that engage a track on the frame. A third retractor blade is configured to be independent of the frame with the first two retractor blades. The independent blade may be fixably positionable in the patient by a direct coupling to a rigid table mount. The retractor assembly may be utilized for creating anterior access to spinal target site while the patient is oriented in the lateral decubitus position.
Claims25
A retractor assembly for forming an operative corridor to a spinal target site, the retractor assembly comprising:
- a main retractor assembly comprising a frame, a first mobile carriage comprising a first blade channel in a side of the first mobile carriage, a second mobile carriage comprising a second blade channel in a side of the second mobile carriage, a first retractor blade assembly, and a second retractor blade assembly, wherein the first retractor blade assembly is removably coupled to the first mobile carriage via the first blade channel, the second retractor blade assembly is removably coupled to the second mobile carriage via the second blade channel, and wherein the first and second mobile carriages are coupled to the frame, wherein the first retractor blade assembly comprises a first retractor cylindrical body having a first retractor cylindrical body distal end and a first retractor cylindrical body proximal end, the first retractor cylindrical body further comprising a first retractor cylindrical body diameter, the first retractor blade assembly further comprising a first retractor handle configured to be grasped by hands of a human user, the first retractor handle secured to the first retractor cylindrical body proximal end and comprising a first retractor handle width, wherein the first retractor handle width is larger than the first retractor cylindrical body diameter, wherein the first blade channel is configured to receive the first retractor cylindrical body via side-loading through the side of the first mobile carriage, and wherein the second retractor blade assembly comprises a second retractor cylindrical body having a second retractor cylindrical body distal end and a second retractor cylindrical body proximal end, the second retractor cylindrical body further comprising a second retractor cylindrical body diameter, the second retractor blade assembly further comprising a second retractor handle configured to be grasped by hands of a human user, the second retractor handle secured to the second retractor cylindrical body proximal end and comprising a second retractor handle width, wherein the second retractor handle width is larger than the second retractor cylindrical body diameter, wherein the second blade channel is configured to receive the second retractor cylindrical body via side-loading through the side of the second mobile carriage;
- and
- an independent retractor assembly having a third retractor blade assembly that is directly coupleable to a rigid mount.
A system for creating an anterior access corridor to a lumber spine with the patient in the lateral decubitus position, comprising:
- a three bladed retractor assembly, wherein a first and a second of the three retractor blades are releasably coupled to an arcuate frame having an arc length of 180° or less and the third retractor blade is independent from the arcuate frame and is directly coupled to a rigid table mount to hold the third retractor blade in position, wherein each of the first and second retractor blades are secured to the arcuate frame via a rigid cylindrical blade post releasably secured to a track in a top surface of the arcuate frame, wherein each rigid cylindrical blade post comprises a distal end to which the respective retractor blade is secured and a proximal end to which a handle is secured, wherein the handle has a handle width greater than a diameter of the rigid cylindrical blade post, and wherein the handle is configured to be grasped by a human user in order to retract and advance the blade perpendicular to the track.
Dependencies are inferred from the claim text.